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Joint Ventures (Summarized Information for Joint Ventures) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Equity Method Investments and Joint Ventures [Abstract]
Net sales	$ 11,992	$ 16,431	$ 35,842	$ 38,924
Gross profit	3,361	4,989	10,663	10,189
Net income	$ 1,905	$ 3,508	$ 5,984	$ 6,090

The amount of gross profit (loss) reported by an equity method investment of the entity.

The amount of net income (loss) reported by an equity method investment of the entity.